Sheet-metal trough or conductor



(No Model.) V

' P. A. LORENZ.

SHEET METAL THOUGH OR GONDUGTOR.

No. 569,338. 'PatentedApr. 28,1896.

UNITED STATE ATENT OFFICE.

PETER A. LORENZ, OF CHICAGQ ILLINOI S.

SHEET-METAL TROUGH OR CONDUCTOR.

SPECIFICATION forming part of Letters Patent 0. 559,338, dated April 28,1896. Application filed DecemherZZ, 1894.: Serial No. 532,741. (Nomodel.)

To alt whom it may concern.-

Be it known that 1, PETER A. LORENZ, a citi zen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Sheet-Metal Troughs orGonductors; and I do hereby declare the following to be a full, clear,and exact description of the same, reference being hadfto theaccompanying drawings, forming a part of this specification.

This invention relates to that form of troughs or conductors for endlessscrew conveyers and like uses that are formed of sheet metal sectionssecured together to afford the desired length; and the objects of thepres ent improvements are as follows: to provide a simple and effectivemeans for attaining a very substantial and tight joint between thesections of the conductor or trough, and, further, to provide a simpleand durable construction and mode of attachment for the ends or heads ofthe conductor or trough, as

' will hereinafter more fully appear, and be more particularly pointedout in the claims. I attain such objects by the construction andarrangement of parts illustrated in the accompanying drawings, in whichFigure 1 is a transverse sectional elevation at line a; m, Fig. 2, of atrough or conductor constructed in accordance with my present invention;Fig. 2, a longitudinal elevation of the same with portions of the jointin section; Fig. 3, a side elevationof one end of the troughorconductor, illustrating the attachment of an. end head thereof; Figs. 4and 5, detail sections of modifications.

Similar numerals of reference indicate like parts in the several views.

Referring to the drawings, 1 and 2 are continuous trough-sections formedof sheet metal of the required length and gage that is, bent into therequired trough shape-with the edges bent outward to form longitudinalside flanges 3, the required stiffness being imparted thereto by foldingthe metal thereof upon itself, as shown. These flanges are for thethreefold purposes of strengthening the trough, affording means forattaching a cover, and mainly to afford means for securing the sectionstogether.

4: is a longitudinally-extending flat bead :formed in the body of thetrough atone or .both sides thereof and some distance below the flanges3 to afford additional stiffness thereto when required.

The adjacent ends of the sections may be butted together, as shown inFig. 2, or lapped together, as shown in Fig. 5, in which latter case onesection will be offset so as to receive the other and impart a smooth orplane inner surface to the trough. t

5 is a straining or coupling bandfeither of wrought or cast1netal,having a curved body portion corresponding in form with that ofthe trough-sections 1 and 2 and having flanges 6 at each side by whichit is attached in place, as hereinafter set forth. It is material to thepresent invention that this coupling-band 5 be somewhat less in height,so that when it embraces the joined ends of the trough-sections 1 and 2its flanges 6 will be some distance away from the flanges 3 of thetroughsections in order to admit of a tight clamping of the partstogether.

7 are bolts, rivets, or other equivalent at taching means that passthrough the respective flanges 6 and 3 of the coupling-band and thetrough-sections, screw-bolts, as shown in the drawings, being preferredas affording the most ready means for straining the parts to gether injoining up the trough-sections.

8 are projections or beads on the ends of the trough-sections adapted tofit in corresponding recesses in the coupling-band 5, to aid in forminga stronger union of the different parts, and these projections may bemore or less continuous around the ends of the troughsections, as foundmostdesirable or conven ient.

In the practical carrying out of my present invention the coupling-band5 may form a part of the supporting-bracket of the trough,-

as illustrated in Fig. 1.

9 is a hanger-bracket within the trough, by which an endless screwconveyer may be supported, and in the present invention this hanger willbe provided with flan 10, through which the attaching-bolts 11 pass, aswell as through the coupling-band 5, so as to attain a more strong andrigid attachment.

12 is an end platefor closing the end of the trough, and in the presentinvention this end plate will be provided with a flange 13, thatcorresponds with the coupling-band 5, and istion, What I claim as new,and desire to secure by Letters Patent, is

1. An open-topped trough or conductor, consisting of sections that areformed With outwardly-projecting and longitudinally-extending marginalflanges 3, in combination with a coupling-band 5, havingoutwardlyextending flanges 6 on its respective ends, and means forattaching the trough-flanges 3 and coupling-band flanges 6 together, thesame consisting of rivets or bolts 7, passing through orifices in saidflanges, substantially as and for the purpose set forth.

2. An open-topped trough or conductor consisting of sections that areformed with outwardly-projecting and longitudinally-extending marginalflanges 3, and beads or projections 8 in combination with thecouplingband 5 having outwardlyextending flanges 6, and recesses adaptedto receive the beads 8, and means for attaching the flanges 3 and poseset forth.

body, having outwardly-projecting and longitudinally-extending marginalflanges b, in

combination with the end plate or head 12, having a flange 13,corresponding in shape to the body of the trough and adapted to flt theoutside of the same, and outwardly-extendin g flanges 14 at its uppercorners, and means for I attaching the flanges 3 and 14 together,substantially as and for the purpose set forth.

4. An open-topped trough or conductor fbody, having outwardly-projectingand 1ongitudinally-extending marginal flanges 3, in combination with theend plate or head 12,

' provided with an outwardly-projecting flange 16,, on a level with thetop surface of the trough-body 1, a flange 13 corresponding in shape tothe trough-body and adapted to fit the outside of the same, andoutwardly-extending flanges 14 at its upper corners, and means forattaching the flanges 3 and 14 to gether, substantially as and for thepurpose set forth.

5. An open topped trough or conductor having outwardly-projecting andlongitudinally-extending marginal flanges 3, in combination with theclamping-band 5 having outwardly-projecting flanges 6 on its respectiveends,n1eans for securing said flanges together,

' a transversely-extending hanger-bracket 9 tially as and for thepurpose set forth.

In testimony whereof Witness my hand this 14th day of December, 1891. 6together, substantially as and for the purj PETER A. LORENZ.

In presence of- ROBERT BURNS, GEo. l-I. ARTHUR.

